Making Connections Using OmniBook Plug-In Modules Using OmniBook Plug-In Modules The plug-in module bay can hold a CD-ROM drive, floppy disk drive, Zip drive, or a secondary battery. This section describes how to ♦ Replace a plug-in module. ♦ Install the floppy disk drive externally. ♦ Insert or eject a floppy disk. ♦ Insert or remove a CD. ♦ Insert or eject an Zip disk. Hint The floppy drive module can also be connected externally via the parallel port. If you want to do this, you’ll need to order the external floppy cable (HP F1380A). You can order this online at http://www.hp.com/omnibook. 4-3